Operation; Initialization; Manual Override - GEM R639 eSyStep Operating Instructions Manual

12 Operation

12.1 Initialization

NOTICE
▶ Initialization should be carried out in a depressurized con-
dition (initialization force = 1/2 nominal force). For initial-
ization under operating pressure, the initialization force
(IO-Link index 0x90 – subindex 3 – Force initialization)
must be adapted.
Initialization must be carried out in the following situations:
• Retrofitting an electrical position indicator
• Replacing the actuator
• Replacing the diaphragm
Initialization is already carried out for the process valve which
was fully mounted in the factory.
Initialization can be carried out using the following proced-
ures:
• On-site initialization
• Initialization via IO-Link
• Initialization via configurable digital input (digital input must
be set to "Init")
12.1.1 On-site initialization of the end positions
1. Connect supply voltage.
2. Hold the magnet briefly (>100 ms) at the point on the
housing cover marked with PROG 1.
ð OPEN and CLOSED LEDs flash alternately.
3. Valve automatically moves into the OPEN position.
4. Valve automatically moves into the CLOSED position.
5. Initialization mode is automatically ended.
6. The end positions are set.
12.1.2 Initialization of the end positions via IO-Link
1. Briefly activate (>100 ms) initialization mode (process
data "Selection of operating mode").
ð OPEN and CLOSED LEDs flash alternately.
2. Valve automatically moves into the OPEN position.
3. Valve automatically moves into the CLOSED position.
4. Initialization mode is automatically ended.
5. The end positions are set.
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12.2 Manual override

Open, actuate and close the manual override with the hexagon
socket (SW3).
1. Unscrew sealing plug 2 anti-clockwise out of cover 1 and
1
2. Operate the manual override 3 with the hexagon socket
53 / 63
remove it.
(WAF3).
ð Turn clockwise to close the valve.
ð Turn anticlockwise to open the valve.
12 Operation
2
1
OPEN
CLOSED
3
GEMÜ R639 eSyStep
Positioner (Code S0)